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Effects of host, temperature and relative humidity on competitive displacement of two invasive Bemisia tabaci biotypes [q and B]

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Insect Science 2012年第5期19卷 595-603页

作者： Dong Chu Yun-Li Tao You-Jun Zhang Fang-Hao Wan Judith K Brown High-tech Research Center Shandong Academy of Agricultural Sciences Institute of Vegetables and Flowers Chinese Academy of Agricultural Sciences State Key Laboratory for Biology of Plant Diseases and Insect Pests Institute of Plant Protection Chinese Academy of Agricultural Sciences Beijing China School of Plant Sciences The University of Arizona Tucson USA

Bemisia tabaci shifted unexpectedly in China from a predominance of B biotype to q biotype during 2005-2008. This observation stimulated an interest in inves- tigating whether environmental factors, including host, temperature and relative humidity （RH） could possibly explain the observed shift in biotypes distribution. Results indicated that all three parameters examined influenced biotype survivability. The percentage of B biotype, when reared together on pepper plants with the q biotype, decreased significantly from 66.7% in the founder population, to 13.6% and 3.7% in the first and second genera- tions, respectively. When the B （founder at 66.7%） and q （founder at 33.3%） biotypes were reared together on eggplant alone, or on pepper-plus-eggplant combination, the population size of the B biotype either remained constant, or increased somewhat in the first and sec- ond generations. On eggplant, the effects of RH and temperature on the competitiveness between the q and B biotypes （3 pairs of q and 6 pairs of B） were not significant.

关键词： Bemisia tabaci B biotype q biotype biological invasion host plant non-competitive displacement

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Overview of the Occurrence and Prevention of Bemisia tabaci Invasion in China

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NASS Journal of Agricultural Sciences 2021年第1期3卷 18-20页

作者： Shunxiao Liu Hao Yu Vlasenko V.A Sumy National Agrarian University SumyG.Kondratyeva St.160Ukraine Henan Institute of Science and Technology XinxiangHenan453003China

Biological invasion refers to the process of invading into another new environment through natural or man-made means from the original place of existence,which includes several stages of introduction,colonization,incubation,diffusion and *** tabaci is a worldwide important agricultural pest composed of multiple *** have confirmed that the B biotype Bemisia tabaci that invaded China has been genetically differentiated,and the q biotype Bemisia tabaci has replaced the B biotype in most areas of *** tabaci has become the dominant biotype in the field.

关键词： Bemisia tabaci Biological invasion Diversity B biotype q biotype

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Spatial and Temporal Distribution Patterns of Bemisia tabaci biotypes/haplotypes in Zhejiang,China

Spatial and Temporal Distribution Patterns of Bemisia tabaci...

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第二届全国生物入侵学术研讨会

作者： Xu Jing,Liu Jian,Liu Shu-Sheng~* (Institute of Insect Sciences,Zhejiang University,Hangzhou 310029,China)

Introduction:The whitefly Bemisia tabaci consists of 12 major genetic groups distributed throughout tropical and subtropical regions of the world(Boykin et al.2007,***.,44: 1306-1319).In the past 20 years,the B biotype(***(Mediterranean/Asia Minor/Africa)) of this species complex has been spreading into many regions of the world,and in many regions of invasion the B biotype has rapidly displaced indigenous whiteflies and caused serious damage to *** China,the B biotype was first recorded in mid to late 1990s and since then has been recorded in nearly all regions of the *** Zhejiang,China,the B biotype was first detected in *** order to determine the composition of the whitefly biotypes/haplotypes in Zhejiang and the process of invasion by alien biotypes,regular field surveys were conducted from 2004-2007.

关键词： B biotype q biotype Bemisia tabaci displacement distribution Zhejiang

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Crossing experiments and behavioural observations reveal reproductive isolation in two invasive whitefly species

Crossing experiments and behavioural observations reveal rep...

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第三届全国生物入侵大会

作者： Di-bing Sun,Jing Xu,Jun-bo Luan,Shu-sheng Liu Institute of Insect Sciences,Zhejiang University,Hangzhou,310029,China

The ’B biotype’ and ’q biotype’ of the whitefly Bemisia tabaci(Gennadius)(Hemiptera: Aleyrodidae) have been invading many parts of the world and causing severe damage to a range of *** phylogenetic analyses suggest that *** is a species complex containing at least 28 cryptic species,of which the B and q biotypes belong to the Middle East-Asia Minor 1(hereon MEAM1) and Mediterranean(hereon MED) putative *** various attempts have been made to examine the reproductive compatibility between MEAM1 and MED,most of the reports did not present the detailed experimental data,and few studies have tested the fertility of the F1 females,so the extent of possible gene flow between the two genetic groups remains *** this study,we conducted two sets of crossing experiments using populations of MEAM1 and MED collected from different locations in Zhejiang,China,a region recently invaded by these *** experiments between the two putative species using either single-pairs or small groups demonstrated that proportions of females in the F1 progeny were only 0-2%in the inter-species crosses compared to 58-68%in the intra-species ***,all inter-species F1 females were sterile. Meanwhile,we conducted observations on mating *** video monitoring and recording showed that the adults of different sex from the two putative species very rarely copulated, and copulation occurred only when adults of opposite sex from different putative species were enclosed in dense cohorts for a relatively long period of *** the behavioural observations,we also compared the mating behaviour of the whitefly on various leaf substrates and found that frequency of mating events on undetached leaves were substantially higher than that on detached leaves, demonstrating the necessity of observing mating behaviour on undetached *** data show that the populations of MEAM1and MED examined in this study are completely isolated

关键词： Bemisia tabaci B biotype q biotype Reproductive incompatibility Mating behavior Cryptic species

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